Spooky Lakes October 22nd

How do scientists determine the age of water?

• Water age is determined by its temperature and pressure

• Scientists estimate water age based on its color

• Scientists use carbon dating to measure water's age

• Scientists analyze the gases trapped in the water

What is the atomic number and symbol for Xenon? (You can use an online periodic table.)

• 56, X

• 54, Xe

• 50, Xn

• 40, Xo

Hydrogen sulfide has a chemical formula of H₂S ... what is its composition?

• Two Hydrogen, One Sulfur

• One Hydrogen, One Sulfur

• One Hydrogen, Two Sulfur

• Two Helium, One Sodium

Methane gas has a chemical formula of CH₄ ... which elements are found in methane?

• Chromium

• Carbon and Hydrogen

• Calcium and Helium

• Gold and Hydrogen